Status Byte Register

Bit Position

Name

Description

0-1

Not used

Always 0.

2

Error/Event Queue

Set to “1” if error/event queue contains data; reset to "0” when all data has been retrieved.

3

Questionable Status Register Summary

Set to “1” when one of the enabled bits in status event status register is set to “1.”

4

MAV (Message Available)

Set to “1” when output queue contains data; reset to “0” when all data has been retrieved.

5

Standard Event Status Register Summary

Set to “1” when one of the enabled bits in status event status register is set to “1.”

6

RQS/MSS

Set to “1” when any of the status byte register bits enabled by service request enable register is set to “1”; reset to "0” when all data has been retrieved through serial polling. See IEEE 488.1 and IEEE 488.2 standards for details.

7

Operation Status Register Summary

Set to “1” when one of the enabled bits in operational status register is set to “1.”